So they were all quiet and so very still that a brown rat thought that there was no one in the loft and came out very boldly.
He has none of the mean disposition of Robber the brown rat.
I find there is no bait so enticing to the brown rat as a piece of chicken or meat of any kind.
The rabbit, black rat, brown rat and mouse have been introduced.
It differs little from the brown rat in appearance, and inhabits the banks of rivers and ponds.
"I think I will pay you a visit in your rooms," said the brown rat.
This is what the Rat likes, especially the brown rat, and there are more nests found in these places than anywhere else.
Appearances were undoubtedly against the brown rat, but it knew something of tactics.
The brown rat (M. norwegicus) is the most aggressive and distinctive.
The brown rat becomes a parent at the age of six months, and produces four or five litters in a year.